paṭiviṃsa : [m.] a share; a portion.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Paṭiviŋsa [paṭi -- aŋsa with euphonic consonant v instead of y (paṭi -- y -- aŋsa) and assimilation of a to i (paṭiyiŋsa> paṭiviŋsa)] lit. "divided part," sub -- part, share, bit, portion, part Vin i.28; iii.60 (T. reads paṭivisa); J ii.286; DhsA 135; DhA i.189; iii.304; VvA 61 (˚vīsa), 64 (v. l. ˚vīsa), 120 (id.).

Pali-English Dictionary, TW Rhys Davids, William Stede,